Lesson 4- Correlations Flashcards
1
Q
What is a correlation?
A
Technique used for analysing the STRENGTH and DIRECTION of the RELATIONSHIP between two variables
2
Q
What is a POSITIVE CORRELATION?
A
As one variable increases the other one will also increase
3
Q
What is a negative correlation
A
As one variable increases the other variable decreases
4
Q
What is the strength of a correlation referred to as?
A
Correlation coefficient
5
Q
Advantages of correlations
A
- Allows strength of a relationship to be established
2.allows researchers to investigate things that could not be manipulated experimentally due to ethical or impractical reasons
6
Q
Disadvantages of correlations
A
- Cause and effect cannot be established
- Correlation only measures LINEAR relationships
7
Q
Difference between correlations and experiments
A
Experiments establish CAUSE AND EFFECT whereas correlations look for a RELATIONSHIP between co variables
